[silverblade] 33702: Stub IRP handlers, implement device name construction (eg: \Device\WaveOut0) and creation of device and symbolic DOS device link. Also moved old sndblst out of the way since ultimately we will be known as sndblst.
25 May
2008
25 May
'08
8:30 p.m.
Author: silverblade
Date: Sun May 25 15:30:47 2008
New Revision: 33702
URL: http://svn.reactos.org/svn/reactos?rev=33702&view=rev
Log:
Stub IRP handlers, implement device name construction (eg: \Device\WaveOut0)
and creation of device and symbolic DOS device link.
Also moved old sndblst out of the way since ultimately we will be known as
sndblst.
Added:
branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/devname.c (with props)
branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/main.c (with props)
branches/silverblade-audio/drivers/multimedia/audio/sndblst.old/
- copied from r33692, branches/silverblade-audio/drivers/multimedia/audio/sndblst/
Removed:
branches/silverblade-audio/drivers/multimedia/audio/sndblst/
Modified:
branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/sb16_nt4.rbuild
branches/silverblade-audio/include/ddk/ntddsnd.h
Added: branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/devname.c
URL:
http://svn.reactos.org/svn/reactos/branches/silverblade-audio/drivers/multi…
==============================================================================
--- branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/devname.c (added)
+++ branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/devname.c [iso-8859-1]
Sun May 25 15:30:47 2008
@@ -1,0 +1,384 @@
+/*
+ ReactOS Sound System
+ Device naming & creation helper routines
+
+ Author:
+ Andrew Greenwood (andrew.greenwood(a)silverblade.co.uk)
+
+ History:
+ 25 May 2008 - Created
+*/
+
+#include <ntddk.h>
+#include <ntddsnd.h>
+#include <debug.h>
+
+/*
+ Default device names
+
+ Just to keep things tidy, we define a structure to hold both the \\Device
+ and \\DosDevices names, and then fill this structure with the default
+ device names that can be found in NTDDSND.H
+*/
+
+typedef struct _DEVICE_NAME_GROUP
+{
+ PCWSTR DeviceName;
+ PCWSTR DosDeviceName;
+} DEVICE_NAME_GROUP;
+
+DEVICE_NAME_GROUP SoundDeviceNameBodies[6] =
+{
+ {
+ DD_WAVE_IN_DEVICE_NAME_U,
+ DD_WAVE_IN_DOS_DEVICE_NAME_U
+ },
+ {
+ DD_WAVE_OUT_DEVICE_NAME_U,
+ DD_WAVE_OUT_DOS_DEVICE_NAME_U
+ },
+ {
+ DD_MIDI_IN_DEVICE_NAME_U,
+ DD_MIDI_IN_DOS_DEVICE_NAME_U
+ },
+ {
+ DD_MIDI_OUT_DEVICE_NAME_U,
+ DD_MIDI_OUT_DOS_DEVICE_NAME_U
+ },
+ {
+ DD_MIX_DEVICE_NAME_U,
+ DD_MIX_DOS_DEVICE_NAME_U
+ },
+ {
+ DD_AUX_DEVICE_NAME_U,
+ DD_AUX_DOS_DEVICE_NAME_U
+ }
+};
+
+
+/*
+ ConstructDeviceName
+
+ This takes a wide-character string containing the device name body (for
+ example, "\\Device\\WaveOut") and appends the device index, forming a
+ string like "\\Device\\WaveOut0", and so on.
+
+ The resulting device name is a unicode string.
+*/
+
+NTSTATUS
+ConstructDeviceName(
+ IN PCWSTR Path,
+ IN UCHAR Index,
+ OUT PUNICODE_STRING DeviceName)
+{
+ UNICODE_STRING UnicodePath;
+ UNICODE_STRING UnicodeIndex;
+ WCHAR IndexStringBuffer[5];
+ USHORT Size;
+ USHORT LastCharacterIndex;
+
+ /* Check for NULL parameters */
+ if ( ( ! Path ) || ( ! DeviceName ) )
+ {
+ ERR_(IHVAUDIO, "Unexpected NULL parameter");
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Range-check */
+ if ( Index >= SOUND_MAX_DEVICES )
+ {
+ ERR_(IHVAUDIO, "Device index %d out of range", Index);
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Initialise the unicode path string */
+ RtlInitUnicodeString(&UnicodePath, Path);
+
+ /* Calculate the length to hold the full string */
+ Size = UnicodePath.Length +
+ sizeof(IndexStringBuffer) +
+ sizeof(UNICODE_NULL);
+
+ /* Allocate memory for DeviceName */
+ DeviceName->Buffer = ExAllocatePool(PagedPool, Size);
+ DeviceName->MaximumLength = Size;
+
+ if ( ! DeviceName->Buffer )
+ {
+ ERR_(IHVAUDIO, "Couldn't allocate memory for device name string");
+ return STATUS_INSUFFICIENT_RESOURCES;
+ }
+
+ /* Copy the path */
+ RtlCopyUnicodeString(DeviceName, &UnicodePath);
+
+ /* Convert Index to string and append */
+ UnicodeIndex.Buffer = IndexStringBuffer;
+ UnicodeIndex.MaximumLength = sizeof(IndexStringBuffer);
+
+ RtlIntegerToUnicodeString((ULONG)Index, 10, &UnicodeIndex);
+ RtlAppendUnicodeStringToString(DeviceName, &UnicodeIndex);
+
+ /* Terminate the string */
+ LastCharacterIndex = DeviceName->Length / sizeof(UNICODE_NULL);
+ DeviceName->Buffer[LastCharacterIndex] = UNICODE_NULL;
+
+ return STATUS_SUCCESS;
+}
+
+
+/*
+ FreeUnicodeStringBuffer
+
+ A small helper routine to free a unicode string buffer, nullify the
+ buffer and reset the lengths to zero.
+*/
+
+VOID
+FreeUnicodeStringBuffer(IN PUNICODE_STRING String)
+{
+ ASSERT(String != NULL);
+ ASSERT(String->Buffer != NULL);
+
+ ExFreePool(String->Buffer);
+
+ String->Buffer = NULL;
+ String->Length = 0;
+ String->MaximumLength = 0;
+}
+
+
+/*
+ GetDefaultSoundDeviceNameBodies
+
+ Simply accesses the SoundDeviceNameBodies struct defined earlier and
+ fills the DeviceNameBody and DosDeviceNameBody parameters accordingly.
+
+ Basically a "safe" way to access the array and perform two assignments
+ with one call, as this will assign the name and DOS name if a valid
+ DeviceType is passed, otherwise it will fail with STATUS_INVALID_PARAMETER.
+*/
+
+NTSTATUS
+GetDefaultSoundDeviceNameBodies(
+ IN UCHAR DeviceType,
+ OUT PCWSTR* DeviceNameBody,
+ OUT PCWSTR* DosDeviceNameBody)
+{
+ ASSERT(DeviceNameBody != NULL);
+ ASSERT(DosDeviceNameBody != NULL);
+
+ if ( DeviceType > MAX_DEVICE_TYPE )
+ {
+ ERR_(IHVAUDIO, "Invalid device type");
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ *DeviceNameBody = SoundDeviceNameBodies[DeviceType].DeviceName;
+ *DosDeviceNameBody = SoundDeviceNameBodies[DeviceType].DosDeviceName;
+
+ return STATUS_SUCCESS;
+}
+
+
+/*
+ ConstructSoundDeviceNames
+
+ Given two wide-character strings and a device index, convert these into
+ two unicode strings with the index appended to the end.
+
+ This is intended for converting a device name and a DOS device name at
+ the same time.
+*/
+
+NTSTATUS
+ConstructSoundDeviceNames(
+ IN PCWSTR DeviceNameBody,
+ IN PCWSTR DosDeviceNameBody,
+ IN UCHAR Index,
+ OUT PUNICODE_STRING FullDeviceName,
+ OUT PUNICODE_STRING FullDosDeviceName)
+{
+ NTSTATUS Status;
+
+ /* Check for NULL parameters */
+ if ( ( ! DeviceNameBody ) || ( ! DosDeviceNameBody ) ||
+ ( ! FullDeviceName ) || ( ! FullDosDeviceName ) )
+ {
+ ERR_(IHVAUDIO, "Unexpected NULL parameter");
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Range-check */
+ if ( Index >= SOUND_MAX_DEVICES )
+ {
+ ERR_(IHVAUDIO, "Device %d exceeds maximum", Index);
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ Status = ConstructDeviceName(DeviceNameBody, Index, FullDeviceName);
+
+ if ( ! NT_SUCCESS(Status) )
+ {
+ /* No need to clean up on failure here */
+ return Status;
+ }
+
+ Status = ConstructDeviceName(DosDeviceNameBody, Index, FullDosDeviceName);
+
+ if ( ! NT_SUCCESS(Status) )
+ {
+ /* We need to free the string we successfully got earlier */
+ FreeUnicodeStringBuffer(FullDeviceName);
+ return Status;
+ }
+
+ return STATUS_SUCCESS;
+}
+
+
+/*
+ CreateSoundDevice
+
+ Creates a device and symbolically-links a DOS device to this. Use this
+ when you want to specify alternative device names to the defaults
+ (eg: "\\Device\\MySoundDev" rather than "\\Device\\WaveOut")
+*/
+
+NTSTATUS
+CreateSoundDevice(
+ IN PDRIVER_OBJECT DriverObject,
+ IN PCWSTR WideDeviceName,
+ IN PCWSTR WideDosDeviceName,
+ IN UCHAR Index,
+ IN ULONG ExtensionSize,
+ OUT PDEVICE_OBJECT DeviceObject)
+{
+ NTSTATUS Status;
+
+ UNICODE_STRING DeviceName;
+ UNICODE_STRING DosDeviceName;
+
+ /* Check for NULL parameters */
+ if ( ( ! DriverObject ) || ( ! DeviceObject ) ||
+ ( ! WideDeviceName ) || ( ! WideDosDeviceName ) )
+ {
+ ERR_(IHVAUDIO, "Unexpected NULL parameter");
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Range-check */
+ if ( Index >= SOUND_MAX_DEVICES )
+ {
+ ERR_(IHVAUDIO, "Device index %d exceeds maximum", Index);
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Construct the device and DOS device names */
+ Status = ConstructSoundDeviceNames(WideDeviceName,
+ WideDosDeviceName,
+ Index,
+ &DeviceName,
+ &DosDeviceName);
+
+ if ( ! NT_SUCCESS(Status) )
+ {
+ return Status;
+ }
+
+ /* Now create the device */
+ Status = IoCreateDevice(DriverObject,
+ ExtensionSize,
+ &DeviceName,
+ FILE_DEVICE_SOUND,
+ 0,
+ FALSE,
+ &DeviceObject);
+
+ if ( ! NT_SUCCESS(Status) )
+ {
+ /* These will have been allocated by ConstructSoundDeviceNames */
+ FreeUnicodeStringBuffer(&DeviceName);
+ FreeUnicodeStringBuffer(&DosDeviceName);
+
+ return Status;
+ }
+
+ /* Create a symbolic link for the DOS deviec name */
+ Status = IoCreateSymbolicLink(&DosDeviceName, &DeviceName);
+
+ if ( ! NT_SUCCESS(Status) )
+ {
+ /* IoDeleteDevice( --- What are we deleting? */
+
+ /* These will have been allocated by ConstructSoundDeviceNames */
+ FreeUnicodeStringBuffer(&DeviceName);
+ FreeUnicodeStringBuffer(&DosDeviceName);
+
+ return Status;
+ }
+
+ return STATUS_SUCCESS;
+}
+
+
+/*
+ CreateSoundDeviceWithDefaultName
+
+ Similar to CreateSoundDevice, except this uses the default device names
+ ("\\Device\\WaveOut" etc.) based on the DeviceType parameter.
+*/
+
+NTSTATUS
+CreateSoundDeviceWithDefaultName(
+ IN PDRIVER_OBJECT DriverObject,
+ IN UCHAR DeviceType,
+ IN UCHAR Index,
+ IN ULONG ExtensionSize,
+ OUT PDEVICE_OBJECT DeviceObject)
+{
+ NTSTATUS Status;
+ PCWSTR WideDeviceName = NULL;
+ PCWSTR WideDosDeviceName = NULL;
+
+ /* Check for NULL parameters */
+ if ( ( ! DriverObject ) || ( ! DeviceObject ) )
+ {
+ ERR_(IHVAUDIO, "Unexpected NULL parameter");
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Range-check */
+ if ( Index >= SOUND_MAX_DEVICES )
+ {
+ ERR_(IHVAUDIO, "Device index %d exceeds maximum", Index);
+ return STATUS_INVALID_PARAMETER;
+ }
+
+ /* Look-up the default name based on the device type */
+ Status = GetDefaultSoundDeviceNameBodies(DeviceType,
+ &WideDeviceName,
+ &WideDosDeviceName);
+
+ if ( ! NT_SUCCESS(Status) )
+ {
+ return Status;
+ }
+
+ /* Go create the device! */
+ Status = CreateSoundDevice(DriverObject,
+ WideDeviceName,
+ WideDosDeviceName,
+ Index,
+ ExtensionSize,
+ DeviceObject);
+
+ if ( ! NT_SUCCESS(Status) )
+ {
+ /* No clean-up to do */
+ return Status;
+ }
+
+ return STATUS_SUCCESS;
+}
Propchange: branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/devname.c
------------------------------------------------------------------------------
svn:eol-style = native
Added: branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/main.c
URL:
http://svn.reactos.org/svn/reactos/branches/silverblade-audio/drivers/multi…
==============================================================================
--- branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/main.c (added)
+++ branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/main.c [iso-8859-1] Sun
May 25 15:30:47 2008
@@ -1,0 +1,113 @@
+/*
+ ReactOS Sound System
+ Sound Blaster / SB Pro / SB 16 driver
+ NT4 driver model
+
+ Author:
+ Andrew Greenwood (andrew.greenwood(a)silverblade.co.uk)
+
+ History:
+ 25 May 2008 - Created
+*/
+
+#include <ntddk.h>
+#include <ntddsnd.h>
+#include <debug.h>
+
+typedef struct _SOUND_BLASTER_EXTENSION
+{
+ ULONG NothingHereYet;
+} SOUND_BLASTER_EXTENSION, *PSOUND_BLASTER_EXTENSION;
+
+
+NTSTATUS STDCALL
+CreateSoundBlaster(
+ IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
+{
+ Irp->IoStatus.Status = STATUS_SUCCESS;
+ Irp->IoStatus.Information = 0;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return STATUS_SUCCESS;
+}
+
+NTSTATUS STDCALL
+CloseSoundBlaster(
+ IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
+{
+ Irp->IoStatus.Status = STATUS_SUCCESS;
+ Irp->IoStatus.Information = 0;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return STATUS_SUCCESS;
+}
+
+NTSTATUS STDCALL
+CleanupSoundBlaster(
+ IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
+{
+ Irp->IoStatus.Status = STATUS_SUCCESS;
+ Irp->IoStatus.Information = 0;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return STATUS_SUCCESS;
+}
+
+NTSTATUS STDCALL
+ControlSoundBlaster(
+ IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
+{
+ Irp->IoStatus.Status = STATUS_SUCCESS;
+ Irp->IoStatus.Information = 0;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return STATUS_SUCCESS;}
+
+NTSTATUS STDCALL
+WriteSoundBlaster(
+ IN PDEVICE_OBJECT DeviceObject,
+ IN PIRP Irp)
+{
+ Irp->IoStatus.Status = STATUS_SUCCESS;
+ Irp->IoStatus.Information = 0;
+
+ IoCompleteRequest(Irp, IO_NO_INCREMENT);
+
+ return STATUS_SUCCESS;}
+
+VOID STDCALL
+UnloadSoundBlaster(
+ IN PDRIVER_OBJECT DriverObject)
+{
+ INFO_(IHVAUDIO, "Sound Blaster driver being unloaded");
+}
+
+NTSTATUS STDCALL
+DriverEntry(
+ IN PDRIVER_OBJECT DriverObject,
+ IN PUNICODE_STRING RegistryPath)
+{
+ NTSTATUS status;
+
+ INFO_(IHVAUDIO, "Sound Blaster driver (NT4 model) by Silver Blade");
+
+ DriverObject->Flags = 0;
+
+ DriverObject->MajorFunction[IRP_MJ_CREATE] = CreateSoundBlaster;
+ DriverObject->MajorFunction[IRP_MJ_CLOSE] = CloseSoundBlaster;
+ DriverObject->MajorFunction[IRP_MJ_CLEANUP] = CleanupSoundBlaster;
+ DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = ControlSoundBlaster;
+ DriverObject->MajorFunction[IRP_MJ_WRITE] = WriteSoundBlaster;
+ DriverObject->DriverUnload = UnloadSoundBlaster;
+
+ return STATUS_SUCCESS;
+}
+
Propchange: branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/main.c
------------------------------------------------------------------------------
eol-style = native
Propchange: branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/main.c
------------------------------------------------------------------------------
svn:eol-style = native
Modified: branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/sb16_nt4.rbuild
URL:
http://svn.reactos.org/svn/reactos/branches/silverblade-audio/drivers/multi…
==============================================================================
--- branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/sb16_nt4.rbuild
[iso-8859-1] (original)
+++ branches/silverblade-audio/drivers/multimedia/audio/sb16_nt4/sb16_nt4.rbuild
[iso-8859-1] Sun May 25 15:30:47 2008
@@ -7,4 +7,5 @@
<library>ntoskrnl</library>
<library>hal</library>
<file>test.c</file>
+ <file>devname.c</file>
</module>
Modified: branches/silverblade-audio/include/ddk/ntddsnd.h
URL:
http://svn.reactos.org/svn/reactos/branches/silverblade-audio/include/ddk/n…
==============================================================================
--- branches/silverblade-audio/include/ddk/ntddsnd.h [iso-8859-1] (original)
+++ branches/silverblade-audio/include/ddk/ntddsnd.h [iso-8859-1] Sun May 25 15:30:47 2008
@@ -15,6 +15,10 @@
Should you have an unstoppable urge to build an NT4 multimedia driver
against these headers, just create the other files listed above and make
them #include this one.
+
+ There are also a number of additional enhancements within this file
+ not found in the originals (such as DOS device name strings and device
+ type IDs).
*/
#ifndef NTDDWAVE
@@ -24,6 +28,20 @@
/*
+ Device types
+ (not part of the original DDK header)
+*/
+
+#define WAVE_IN_DEVICE_TYPE 0
+#define WAVE_OUT_DEVICE_TYPE 1
+#define MIDI_IN_DEVICE_TYPE 2
+#define MIDI_OUT_DEVICE_TYPE 3
+#define MIXER_DEVICE_TYPE 4
+#define AUX_DEVICE_TYPE 5
+#define MAX_DEVICE_TYPE AUX_DEVICE_TYPE
+
+
+/*
Base device names
Each device name should be given a numerical suffix identifying that
@@ -33,25 +51,37 @@
\Device\WaveOut1 - Second wave output device
*/
-#define SOUND_MAX_DEVICE_NAME 80
-
-#define DD_WAVE_IN_DEVICE_NAME "\\Device\\WaveIn"
-#define DD_WAVE_IN_DEVICE_NAME_U L"\\Device\\WaveIn"
-
-#define DD_WAVE_OUT_DEVICE_NAME "\\Device\\WaveOut"
-#define DD_WAVE_OUT_DEVICE_NAME_U L"\\Device\\WaveOut"
-
-#define DD_MIDI_IN_DEVICE_NAME "\\Device\\MidiIn"
-#define DD_MIDI_IN_DEVICE_NAME_U L"\\Device\\MidiIn"
-
-#define DD_MIDI_OUT_DEVICE_NAME "\\Device\\MidiOut"
-#define DD_MIDI_OUT_DEVICE_NAME_U L"\\Device\\MidiOut"
-
-#define DD_MIX_DEVICE_NAME "\\Device\\MMMix"
-#define DD_MIX_DEVICE_NAME_U L"\\Device\\MMMix"
-
-#define DD_AUX_DEVICE_NAME "\\Device\\MMAux"
-#define DD_AUX_DEVICE_NAME_U L"\\Device\\MMAux"
+#define SOUND_MAX_DEVICE_NAME 80
+
+#define DD_WAVE_IN_DEVICE_NAME "\\Device\\WaveIn"
+#define DD_WAVE_IN_DEVICE_NAME_U L"\\Device\\WaveIn"
+#define DD_WAVE_IN_DOS_DEVICE_NAME "\\DosDevices\\WaveIn"
+#define DD_WAVE_IN_DOS_DEVICE_NAME_U L"\\DosDevices\\WaveIn"
+
+#define DD_WAVE_OUT_DEVICE_NAME "\\Device\\WaveOut"
+#define DD_WAVE_OUT_DEVICE_NAME_U L"\\Device\\WaveOut"
+#define DD_WAVE_OUT_DOS_DEVICE_NAME "\\DosDevices\\WaveOut"
+#define DD_WAVE_OUT_DOS_DEVICE_NAME_U L"\\DosDevices\\WaveOut"
+
+#define DD_MIDI_IN_DEVICE_NAME "\\Device\\MidiIn"
+#define DD_MIDI_IN_DEVICE_NAME_U L"\\Device\\MidiIn"
+#define DD_MIDI_IN_DOS_DEVICE_NAME "\\DosDevices\\MidiIn"
+#define DD_MIDI_IN_DOS_DEVICE_NAME_U L"\\DosDevices\\MidiIn"
+
+#define DD_MIDI_OUT_DEVICE_NAME "\\Device\\MidiOut"
+#define DD_MIDI_OUT_DEVICE_NAME_U L"\\Device\\MidiOut"
+#define DD_MIDI_OUT_DOS_DEVICE_NAME "\\DosDevices\\MidiOut"
+#define DD_MIDI_OUT_DOS_DEVICE_NAME_U L"\\DosDevices\\MidiOut"
+
+#define DD_MIX_DEVICE_NAME "\\Device\\MMMix"
+#define DD_MIX_DEVICE_NAME_U L"\\Device\\MMMix"
+#define DD_MIX_DOS_DEVICE_NAME "\\DosDevices\\MMMix"
+#define DD_MIX_DOS_DEVICE_NAME_U L"\\DosDevices\\MMMix"
+
+#define DD_AUX_DEVICE_NAME "\\Device\\MMAux"
+#define DD_AUX_DEVICE_NAME_U L"\\Device\\MMAux"
+#define DD_AUX_DOS_DEVICE_NAME "\\DosDevices\\MMAux"
+#define DD_AUX_DOS_DEVICE_NAME_U L"\\DosDevices\\MMAux"
/*
Base control codes
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